Get Yourself a Kitchenaid Stand Mixer
You could ease into the world of mixers, but I say go for the big guns first. Just by design, you’ll find them easier to use. A Kitchenaid stand mixer is big and bulky, meant to be stored on the a counter, not hidden in a cupboard you have to dig through on hands and knees every time you want to use it. Remember: out of sight, out of mind.
A counter corner is a perfect spot to keep your mixer - far back enough to leave you space for every day kitchen routines, yet close enough to pull forward when you need it. Due to the weight and bulk of the machine keep it on an inexpensive cutting board for ease of movement. Then you can just slide it in and out of its corner without straining your arms and back. Better yet, if you’ve got the space, just keep it out and ready for use on a constant basis.